To keep your iPad in the best shape to run posBoss and your other apps, we recommend the following:
Make sure the iPad is not too full (of apps, music etc) A good rule for any computer is to have at least 25% of the operating system drive space free. Check this under the iPad Settings > General > iPad Storage
Once a day, perform a full close out of the posBoss app and reopen (tap the home button twice and swipe up on posBoss to close, then re-open).
Once a week, reboot the iPad.
Make sure you keep the operating system updated to a recent version of Apple's operating system - iOS.